.photo-container{
  width: 80vw;
  margin: 10px auto;
  >div{
    height: 150px;
    display: flex;
    background: #FFFFFF;
    border: 1px solid #D0D0D0;
    justify-content: center;
    align-items: center;
    position: relative;
    color: #fff;
    img{
      width: 100%;
      height: 100%;
    }
    input{
      width: 100%;
      height: 100%;
      opacity: 0;
      position: absolute;
      top:0;
      left: 0;
    }
  }
}
#photoA{
  background: url(http://zhuobangedu.com/php/assets/storage/front2.jpg);
  height: 170px;
  background-size: 100%;
}
#photoB{
  background: url(http://zhuobangedu.com/php/assets/storage/back2.jpg);
  height: 170px;
  background-size: 100%;
}
